obc categery 1g 1r and 1k in Karnataka means
There are just so many reservation categories in Karnataka that it can be difficult sometimes to keep a track. These categories were originally created to help poor and underprivileged.
As per your question 1G stands for 1 general that means people who do not live in rural area or are from a High caste.
1r stands for 1 rural that means people who are from rural area or lower caste.
1k stands for 1 Kannada that means people who lives in Kannada.
These categories are based on caste and quotas and cut-off is based accordingly.
https://engineering.careers360.com/articles/kcet-reservation-criteria
Hope you find it helpful.
Thankyou!